Two months before its release on 14 December, in theaters, Disney and Lucasfilm have unveiled the final trailer of the film "Rogue One: A Star Wars Story," a spin-off of Star Wars is passing between episode III and episode IV. This new trailer allows us to know a little more about the leaders of the army opposing the Death Star and finally reveals the character of Mads Mikkelsen, Galen Erso, dad Jyn that would have created a weapon against the Empire.